Toothbrush



FIG. 1 is a front elevational view of a toothbrush showing my new design;

FIG. 2 is a right-side elevational view of the toothbrush shown in FIG. 1, the left side being a mirror image thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a front elevational view of another embodiment of a toothbrush showing my design with shading to depict color;

FIG. 5 is a right-side elevation view of the toothbrush shown in FIG. 4, the left side being a mirror image thereof; and,

FIG. 6 is a rear elevational view of the toothbrush shown in FIG. 4. 

The ornamental design for a toothbrush, as shown and described. 